Improvement in sand-pumps



UNITED STATES ATENT OFFICE.

ROBERT CORNELIUS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEM ENT IN SAND-PUMPS.

Specification forming part of Letters Patent No. 54,867, dated May 22,1866.

To all lwhom. t may concern:

Be it known that I, ROBERT CORNELIUS, of the city of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Sand-Pumps, for removing the sand and detritus from Artesian and other wells; and I hereby declare the following to 'bea full and exact description of' the same,

reference being had tothe annexed drawings, in which- Figure l is an exterior view, and Fig. 2 is a sectional View thereof. Fig. 3 is a drill which can be secured to the pump.

My improvement consists, iirst, in attaching to the upper part of the sand-pump a wiregauze or perforated plate, through which the Water'can escape, leaving only the sand within.

My sand-pump has within it a spiral plate, whereby it will be constantly revolved. This is especially advantageous when the sandpump is used as a drill-stock.

In Fig. 2, A B represent the sand-pump. U is a ball-valve over the bottom aperture, D E. F is a metallic plate twisted about half a turn. Figures No. 1 and l2 is a recess surrounding the pump. A series of holes (shown in Fio'. 1) are bored through the walls of the pump at this recess, and a strip of wire-gauze or perforated metal is secured over them. To the top of the pump a swivel is attached, by which the pump is secured to the rope.

The operation of the improvement is as follows: The sand-pump is suspended by a rope and raised and lowered at the bottom of th'e well. The descent of the pump forces the wa ter and sand and detritus up into the body o pump and past the ballvalve at O. Iln Water Hows off through'l the apertures at thi perforated metal or gauze at the top and leave: the detritus in the pump. Hence a greatc: amount of detritus can be drawn out. lh water as it passes up through the body of th( pump forces the spiral plate D E, which is-at tached to the tube vabove and below, to con stantly 1'evol\'"'tl1e pump in the same direc tion. If a drill be attached by a screw to thi bottom of the sand-pump the effect ot' thi: spiral plate will be to obviate the necessityo revolving the drill by hand through the me dium ofthe rope.

This sand-pu m p may be used as a drill-stock either with a drill perforated through it; length, or a perforation may be made in thi lower part of the sand-pump immediatel; above the drill.

What I claim as my invention, and desire ti secure by Letters Patent, is

l. The employment ot' wire-gauze or perfo rated metal in the sand-pump in the manne and for the purpose substantially as described 2. The employment ot' the turningplatc I E F in the interior of the sand pump.

The combination ot' the sand-pump, hav ing an interior turning plate, with the drill. ROBERT CORNELIUS.

Witnesses:

J. E. SHAW, G. E. BUGKLEY. 

